Chapter 12 Pt 2 Flashcards

1
Q

If fluid is lost by vomiting or diarrhea, what mineral is lost in greatest quantity

A

Sodium

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2
Q

What is the principal extracellular cation

A

Sodium

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3
Q

The average person in the US consumes _______ of sodium

A

More than the recommended amount

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4
Q

What does chloride do in the body

A

Forms part of stomach Hydrochloric acid

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5
Q

What does potassium do in the body

A

Acts as principal intracellular electrolyte

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6
Q

Where is 99% of the body’s calcium located

A

Bones and teeth

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7
Q

On average adults absorb _____ of the calcium they ingest

A

30%

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8
Q

Calcium is the most abundant mineral in the body. Which mineral is the second most abundant

A

Phosphorus

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9
Q

What does phosphorus do in the body

A

Assists in energy metabolism as a component of atp

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10
Q

What does magnesium do in the body

A

Is a cofactor for over 300 enzyme systems

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11
Q

Is the hormone secreted by the thyroid gland that regulates blood calcium by lowering it when levels are too high

A

Calcitonin

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12
Q

A bone condition in which bones become thinner and weaker with age, but not as severe as in osteoporosis is termed

A

Osteopenia

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13
Q

Oxalates and phytates are _______ which are chemical compounds in food can combine chemically with minerals and reduce their bioavailability

A

Binders

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14
Q

Oxalates are acids in spinach which _______ calcium absorption

A

Reduce

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15
Q

Which mineral provides shape to proteins and is part of the vitamins thiamin and biotin and the amino acids cysteine and methionine

A

Sulfur

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16
Q

Minerals are classified as major minerals or as trace minerals. Major minerals are needed twice a week and minor minerals are needed once a week

A

First statement is true

Second statement is false

17
Q

Which two minerals function as electrolytes and are necessary for proper nerve function and muscle contractions

A

Sodium and potassium p

18
Q

Condition characterized by persistently elevated blood pressure
Associated with increased calcium exertion
Target of PTH release calcium
Target of PTH increase calcium loss
Crystals of calcium and phosphorus found in bone and teeth

A

Hypertension

High salt intake

Bones

Kidneys

Hydroxyapatite

19
Q

Food processing does not destroy minerals . Minerals can be lost from foods

A

Both statements are true